These are not the genuine RB seals, the original "genuine" RB seals had the words "genuine novarossi" on the rim of the seal but now do not and the new ones last only half the time of the original ones.
The same goes for OS as they used to have "made in japan" on the rim but now do not and the new OS seals only last half the time of the original ones also.
Seems like they are all being made in China or somewhere out of poor materials so more get sold.